Which technologies provide remote-site redundancy for Cisco IP Phones during a WAN failure?
A. SRST and MGCP fallback
B. SRST and TEHO
C. TEHO and MGCP fallback
D. SRST and AAR
Which technologies provide remote-site redundancy for Cisco IP Phones during a WAN failure?
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Which technologies provide remote-site redundancy for Cisco IP Phones during a WAN failure?
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